constipatedcow18
24.06.2019 •
Mathematics
An endocrinologist is interested in the effects of depression on the thyroid gland. it is believed that healthy subjects have a mean thyroxin (a hormone related to thyroid function) level of 7.0 micrograms/100 ml and a standard deviation of 1.6 micrograms/100 ml. the endocrinologist wants to assess whether the mean thyroxin level is different for those with depression. she samples 35 subjects with depression and obtains a sample mean of 7.82 micrograms/100 ml for thyroxin. the p value is 0.0124 for testing h0: μ = 7 versus h1: μ ≠ 7. what conclusions should be drawn at p = 0.05?
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